Description

GEHL SL1640E 2010 Parts Catalog – Factory OEM Parts Manual

You’ve got a GEHL SL1640E skid-steer loader down with a blown lift cylinder. You pull the old part, squint at the worn stamping, and start guessing the part number. That’s where this Parts Catalog from 2010 becomes the difference between a one-hour repair and a three-day wait for the wrong parts. I’ve been turning wrenches for almost three decades, and the number of times I’ve seen a tech order a tilt cylinder seal kit because he couldn’t read the part number off the barrel – it’s embarrassing. This manual stops that nonsense cold.

At 112 pages, it’s not a novel. It’s a reference. Every page is straight from GEHL – not some scanned-and-OCR’d mess that misprints the bolt grade. The factory format is preserved, and the inside back cover lists standard attaching hardware torque values. You need that when you’re torquing a brake release solenoid bracket and don’t have the spec memorized.

Lift Cylinder and Tilt Cylinder: Where the Manual Earns Its Keep

Two of the most common failure points on any skid-steer: the lift and tilt cylinders. This catalog breaks them down into exploded views with individual part numbers and quantities. The lift cylinder section shows each seal, each bushing, and the rod itself. For the tilt cylinder, same treatment. If you’ve ever tried to cross-reference a GEHL cylinder seal kit using aftermarket charts, you know the headache. The factory manual lists the seal kit number right next to the cylinder assembly. Order that kit and move on.

One thing I check immediately on any hydraulic component page: whether the manual calls out the correct O-ring size. This one does. It also includes the note that if a part requires lubrication or a nonstandard torque value, it’s specified in parentheses behind the part number. Pay attention to that – it saves a torn seal.

Drive Motors with Parking Brake: Common Failure Points

The SL1640E uses two hydrostatic drive motors – a 195217 rear and a 242241 front. Both are covered in the “Drive Motors with Parking Brake” section. The part numbers for the park brake components – the disc, the piston, the return springs – are right there. And the manual tells you which seal kit to use when rebuilding the motor. I’ve seen guys order a whole new drive motor because they couldn’t find the part number for a $12 seal. That’s throwing money away.

Also in this section: the brake release solenoid. The manual explicitly states “No Illustration – Use Seal Kit 243064”. That’s the kind of clarity aftermarket manuals lack. They’d try to draw a generic solenoid and leave you guessing which seal goes where.

Valve Sections: Self-Leveling, Lift/Tilt Solenoid, and Main Control

Three separate valve assemblies live in this machine: the self-leveling valve, the lift and tilt solenoid valve, and the main control valve. Each has its own parts breakdown. The solenoid valves – both the lift/tilt and the brake/brake-release solenoids – are listed with their coil part numbers and mounting hardware. If you’re chasing a hydraulic issue that’s intermittent, start here. The valve spools, springs, and O-rings are all individually numbered. You can rebuild the whole stack instead of replacing it. That’s a $700 job turned into a $75 parts order.

The tandem pump section covers the gear pump assemblies – both the double gear pump and the charge pump components. The manual lists the pump part numbers and the seal kit references. When diagnosing low hydraulic flow, having the exact pump breakdown saves you from tearing into unnecessary components.

Schematics: Electrical and Hydrostatic – The Diagnosis Blueprint

Section D is the schematics. Two schematics: hydrostatic/hydraulic and electrical. This is where the manual becomes a diagnostic tool, not just a parts list. The electrical schematic traces every wire, every solenoid connector, every switch. If your SL1640E won’t start and the brake release solenoid isn’t engaging, you can follow the circuit from the battery to the switch to the solenoid in under two minutes. I keep a copy of this page laminated in my toolbox. this Wikipedia article on diesel engines won’t help you here – you need the factory wiring colors and connector pinouts. The hydrostatic schematic shows the flow paths for charge pressure, lift, and tilt circuits. That’s the map for pressure-testing the system.

Kits and Accessories: What GEHL Recommends

Section C lists the factory kits and accessories: backup alarm kit (811513), rearview mirror kit (806894), dome light kit (811519), horn kit (811514), cab door kit (811624), strobe light kit (808279), cab heater kit (811622). Each kit includes its own parts breakdown. If you’re adding a cab heater to a machine that didn’t come with one, this section tells you exactly what brackets, hoses, and fasteners are needed. No guesswork. The manual also lists the filters and analysis kits – contact your GEHL dealer for those.

One thing I like: the manual specifically notes that replacement batteries are not provided by GEHL and must be purchased locally. That’s real-world honesty. Don’t try to order a battery from the parts catalog – it’s not there. Check the “Electrical-Chassis” chapter for specs.

Does This Manual Cover Torque Specs and Fluid Capacities?

Are standard torque values included for fasteners?

Yes. The inside back cover has standard attaching hardware torque values. For nonstandard torque values, they’re specified behind the part number in parentheses.

Can I use this to order the brake release solenoid seal kit?

Absolutely. The manual states “No Illustration – Use Seal Kit 243064” for the brake release solenoid. That’s the exact part number. The seal kit includes all O-rings and seals needed. Order it, install it, and you’re done. No cross-referencing, no second-guessing. I’ve done this exact repair on an SL1640E – the kit is around $40 and takes an hour to swap. The manual saved me a full day of phone calls.

Source Authenticity: Why OEM Beats Aftermarket

I’ve got a shelf full of aftermarket parts catalogs that claim to cover the GEHL SL1640E. They show generic drawings with “similar to OEM” notes. That’s not good enough when you’re ordering a $600 drive motor or a critical brake valve. This manual is the original GEHL publication – Form No. 917374, Revision C, dated 04/10. The part numbers are verified against the factory production line. The schematics are the same ones GEHL’s own service techs use. When I order a lift cylinder seal kit from this catalog, it fits. Period.

Aftermarket manuals often miss the “No Illustration – Use Seal Kit 243064” notes. They’ll try to show a generic solenoid picture, and you end up ordering the wrong part. That cost me a Saturday once. Never again.

For related machines, check out the GEHL SL1640E, SL1640E (EU) Operators Manual – Factory OEM for operation and service procedures. If you’re working on larger models, the GEHL SL4640, SL4840, SL5640, SL6640 2005 Parts Catalog covers a similar platform, and the GEHL SL7610, SL7710, SL7810 2005 Parts Catalog – OEM Factory Specs is useful for the bigger machines.

Stop reading about it and get the real thing. Access the Factory Manual now and put this 112-page Parts Catalog on your shop tablet. Your SL1640E will be back in service tomorrow, not next week.